PERT-II type thermal insulation pipe sweat soldering performance testing device

Abstract

The utility model discloses a PERT-II type thermal insulation pipe hot melting welding performance testing device which comprises an experiment assembly and a water supply assembly, the experiment assembly comprises an experiment table, a fixing plate is fixed on one side of the experiment table, a positioning plate is arranged on the other side of the experiment table in a sliding mode, a positioning assembly for positioning the position of the positioning plate is arranged above the experiment table, and the water supply assembly is arranged on the experiment table. A water inlet pipe is fixed to the side face of the fixing plate and penetrates through the fixing plate, the water supply assembly comprises a water storage tank, and one end of the water inlet pipe is fixed to the side face of the water storage tank and communicates with an inner cavity of the water storage tank. The PERT-II type thermal insulation pipe hot-melt welding performance testing device can effectively test the performance of the hot-melt welding position of the PERT-II type thermal insulation pipe and a matched thermal insulation pipe fitting, actual application of the PERT-II type thermal insulation pipe is facilitated by obtaining experimental data of the hot-melt welding position under different water pressures and different temperatures, and the PERT-II type thermal insulation pipe hot-melt welding performance testing device is suitable for popularization and application. Meanwhile, the testing device is suitable for experimental tests of pipelines with different lengths and different diameters.

Description

TECHNICAL FIELD

[0001] The utility model relates to test device technical field, concretely is a kind of PERT-II type heat preservation pipe hot melt welding performance test device. BACKGROUND

[0002] District heating pipe network serves thousands of families, but old district heating pipe network is mostly steel prefabricated direct-buried heat preservation pipeline, steel pipe is used as conveying heat source working inner tube, easy to be corroded by heating water and block pipeline, valve, instrument etc., and PERT-II type polyethylene material can easily resist the corrosion of heating water compared with traditional metal pipeline, does not produce corrosion debris, provides strong guarantee for the stable operation of pipeline.In addition, PERT-II type polyethylene material has stable temperature resistance, can maintain excellent impact resistance in-40℃-90℃ low and high temperature environment, and pipe quality is light, supports various connection modes, such as hot melt butt joint, and its reliable performance is stable, construction efficiency is high, so it is necessary to develop and apply PERT-II type heat preservation pipe and supporting heat preservation pipe fittings for district heating pipe network reconstruction and refrigerant conveying, and to research and apply experiment on production process and technology.But it is inconvenient to test the welding performance of PERT-II type heat preservation pipe and supporting heat preservation pipe fittings after hot melt butt joint, and it is inconvenient to obtain PERT-II type heat preservation pipe hot melt welding performance test data. SUMMARY

[0003] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a PERT-II type heat preservation pipe hot melt welding performance test device, which can effectively test the hot melt welding performance of PERT-II type heat preservation pipe and supporting heat preservation pipe fittings, obtain experimental data of the hot melt welding part under different water pressures and different temperatures, facilitate the practical application of PERT-II type heat preservation pipe, and the test device is suitable for experimental testing of pipes of different lengths and diameters, so that the problems in the background art can be effectively solved.

[0004] To achieve the above object, the utility model provides the following technical scheme: a PERT-II type heat preservation pipe hot melt welding performance test device, which comprises an experimental assembly and a water supply assembly, the experimental assembly comprises an experimental table, one side of the experimental table is fixed with a fixed plate, the other side of the experimental table is slidably provided with a positioning plate, and a positioning assembly is arranged above the experimental table to position the positioning plate, a water inlet pipe is fixed on the side surface of the fixed plate and penetrates through the fixed plate, the water supply assembly comprises a water storage tank, one end of the water inlet pipe is fixed on the side surface of the water storage tank and communicates with the inner cavity of the water storage tank, and a pressurizing assembly is arranged on the side surface of the water storage tank.

[0005] As a preferred technical scheme of the utility model, the positioning assembly comprises a plurality of connecting rods fixed on the side face of the positioning plate, and the connecting rods are slidably connected with the fixed plate, a thread is formed on the end of the connecting rod close to the fixed plate, and a positioning nut is threadedly connected with the end of the connecting rod.

[0006] As a preferred technical scheme of the utility model, the fixed plate is provided with a first sealing gasket on the side face thereof facing the positioning plate, and the positioning plate is provided with a second sealing gasket on the side face thereof facing the fixed plate.

[0007] As a preferred technical scheme of the utility model, a one-way valve is mounted on the water inlet pipe, and the one-way valve is a one-way water inlet valve.

[0008] As a preferred technical scheme of the utility model, a water outlet pipe is mounted on the side face of the positioning plate and penetrates through the positioning plate, a first valve is mounted on the water inlet pipe, and a second valve is mounted on the water outlet pipe.

[0009] As a preferred technical scheme of the utility model, the pressurizing assembly comprises a water supply pump mounted on the side face of the water storage tank, and a communication pipe in communication with the inner cavity of the water storage tank is arranged at the water outlet end of the water supply pump.

[0010] As a preferred technical scheme of the utility model, a pressure detection sensor is mounted on the water storage tank, and the detection end of the pressure detection sensor is located in the water storage tank, and a support frame supporting the water storage tank is arranged at the lower part of the side face of the water storage tank.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The PERT-II type heat preservation pipe hot melting welding performance testing device can effectively test the hot melting welding performance of the PERT-II type heat preservation pipe and the matched heat preservation pipe fitting, and through obtaining the experimental data of the hot melting welding position under different water pressures and different temperatures, the practical application of the PERT-II type heat preservation pipe is facilitated, and meanwhile, the testing device is suitable for the experimental testing of pipes with different lengths and different diameters. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a structural schematic view of the utility model;

[0014] Fig. 2 It is another perspective structural schematic view of the utility model;

[0015] Fig. 3 It is a structural schematic view of the experimental assembly in the utility model.

[0016] In the figure: 1 experimental table, 2 fixed plate, 21 first sealing gasket, 3 connecting rod, 4 positioning nut, 5 positioning plate, 51 second sealing gasket, 6 water inlet pipe, 61 one-way valve, 62 first valve, 7 water outlet pipe, 71 second valve, 8 water storage tank, 9 support frame, 10 water supply pump, 11 communication pipe, 12 pressure detection sensor. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a PERT-II type heat preservation pipe hot melt welding performance testing device, including experimental assembly and water supply component, experimental assembly includes experimental table 1, experimental table 1 side is fixed with fixed plate 2, experimental table 1 other side is slidably provided with positioning plate 5, and experimental table 1 top is provided with the positioning assembly for the position of positioning plate 5 Positioning, by sliding positioning plate 5 moves above experimental table 1, and by positioning assembly to positioning plate 5 is positioned, PERT-II type heat preservation pipe or matched heat preservation pipe piece after hot melt welding is clamped and fixed between fixed plate 2 and positioning plate 5, this mode can be used for the clamping and fixing of PERT-II type heat preservation pipe of different diameters, improve the application range when using this testing device.

[0019] Fixed plate 2 side is fixed with water inlet pipe 6, and water inlet pipe 6 is arranged through fixed plate 2, and water supply component includes water storage tank 8, and one end of water inlet pipe 6 is fixed on the side of water storage tank 8 and is communicated with the inner cavity of water storage tank 8, and the side of water storage tank 8 is provided with pressurizing assembly, by controlling pressurizing assembly to pressurize water storage tank 8, so that the water flow in water storage tank 8 flows to PERT-II type heat preservation pipe through water inlet pipe 6, and by pressurizing assembly control water flow can be used for the adjustment of water pressure in PERT-II type heat preservation pipe, facilitate the performance of the hot melt welding position of PERT-II type heat preservation pipe under different water pressures.

[0020] The positioning assembly comprises a plurality of connecting rods 3 fixed on the side of the positioning plate 5, and the connecting rods 3 are in sliding connection with the fixed plate 2, a thread is formed on the end of the connecting rod 3 close to the fixed plate 2, and a positioning nut 4 is threadedly connected to the end of the connecting rod 3; the fixed plate 2 supports the positioning plate 5 through the plurality of connecting rods 3, and the position of the positioning plate 5 can be adjusted by moving the connecting rods 3 on the side of the fixed plate 2; and the position of the connecting rod 3 after the position adjustment is positioned by the positioning nut 4, so that the test device is suitable for experimental tests of PERT-II type heat preservation pipes with different lengths.

[0021] A first sealing gasket 21 is mounted on the side of the fixed plate 2 facing the positioning plate 5, and a second sealing gasket 51 is mounted on the side of the positioning plate 5 facing the fixed plate 2; when the hot melt welding performance of the PERT-II type heat preservation pipe is tested, one end of the PERT-II type heat preservation pipe is in contact with the first sealing gasket 21 on the side of the fixed plate 2, and the other end of the PERT-II type heat preservation pipe is in contact with the second sealing gasket 51 on the side of the positioning plate 5; when the PERT-II type heat preservation pipe is clamped and positioned by the fixed plate 2 and the positioning plate 5, the two ends of the PERT-II type heat preservation pipe are sealed by the first sealing gasket 21 and the second sealing gasket 51, so as to prevent water leakage during the test.

[0022] A one-way valve 61 is mounted on the water inlet pipe 6, and the one-way valve 61 is a one-way water inlet valve; during the test, the one-way valve 61 is arranged to facilitate the storage of water flow in the PERT-II type heat preservation pipe, so that the water pressure in the PERT-II type heat preservation pipe can be stabilized without the need for the pressurizing assembly to work, and the use of the test device is facilitated.

[0023] A water outlet pipe 7 is mounted on the side of the positioning plate 5 and penetrates through the positioning plate 5; the arrangement of the water outlet pipe 7 facilitates the test of the hot melt welding performance of the PERT-II type heat preservation pipe under the condition of water flow, improves the test capacity, and enriches the experimental data of the hot melt welding performance test of the PERT-II type heat preservation pipe; a first valve 62 is mounted on the water inlet pipe 6, which facilitates the adjustment of the water flow in the water inlet pipe 6; a second valve 71 is mounted on the water outlet pipe 7, and the opening and closing of the second valve 71 can be used to select the test mode of the hot melt welding performance of the PERT-II type heat preservation pipe, i.e., to use the fixed water pressure mode for testing or to use the flowing water pressure mode for testing.

[0024] The pressurizing assembly comprises a water supply pump 10 mounted on the side of the water storage tank 8, and a communication pipe 11 in communication with the inner cavity of the water storage tank 8 is arranged at the water outlet end of the water supply pump 10; by controlling the operation of the water supply pump 10, the water flow extracted from the outside by the water supply pump 10 enters the water storage tank 8 through the communication pipe 11, so as to supplement the water source in the water storage tank 8; at the same time, the water pressure during the test is adjusted by supplementing the water source in the water storage tank 8, so as to facilitate the use of the test device.

[0025] The pressure detection sensor 12 is arranged on the water storage tank 8, and a detection end of the pressure detection sensor 12 is located in the water storage tank 8. The pressure detection sensor 12 is arranged for detecting the water pressure in the water storage tank 8, so as to realize the detection of the water pressure in the PERT-II type heat preservation pipe, facilitate the acquisition of experimental data during the test of the PERT-II type heat preservation pipe, and facilitate the installation and use of the water storage tank 8.

[0026] The water supply pump 10, the pressure detection sensor 12 and the like used in the utility model are common electronic elements in the prior art, the working mode and the circuit structure thereof are all known technologies, and the working of the electronic elements such as the water supply pump 10 and the pressure detection sensor 12 is controlled through the setting of a switch group or a PLC controller. This mode is a common technical means for technicians, and will not be described here.

[0027] The non-disclosed parts in the utility model are all in the prior art, and the specific structure, the material and the working principle will not be described in detail. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A PERT-II type heat preservation tube hot melt welding performance testing device, comprising an experimental assembly and a water supply assembly, characterized in that: The experimental assembly includes an experimental table (1), one side of the experimental table (1) is fixed with a fixed plate (2), the other side of the experimental table (1) is slidably provided with a positioning plate (5), and the upper portion of the experimental table (1) is provided with a positioning assembly for positioning the position of the positioning plate (5), the side surface of the fixed plate (2) is fixedly provided with a water inlet pipe (6), and the water inlet pipe (6) penetrates through the fixed plate (2), the water supply assembly includes a water storage tank (8), one end of the water inlet pipe (6) is fixed on the side surface of the water storage tank (8) and communicates with the inner cavity of the water storage tank (8), and the side surface of the water storage tank (8) is provided with a pressurizing assembly.

2. The PERT-II type hot melt welding performance test device for insulated tubes according to claim 1, characterized in that: The positioning assembly includes a plurality of connecting rods (3) fixed on the side surface of the positioning plate (5), and the connecting rods (3) are slidably connected with the fixed plate (2), one end of the connecting rod (3) close to the fixed plate (2) is provided with a thread, and the end of the connecting rod (3) is threadedly connected with a positioning nut (4).

3. The PERT-II type thermal retention tube hot melt welding performance testing device according to claim 1, characterized in that: The side of the fixed plate (2) facing the positioning plate (5) is provided with a first sealing gasket (21), and the side of the positioning plate (5) facing the fixed plate (2) is provided with a second sealing gasket (51).

4. The PERT-II type thermal retention tube hot melt welding performance testing device according to claim 1, characterized in that: The water inlet pipe (6) is provided with a one-way valve (61), and the one-way valve (61) is a one-way water inlet valve.

5. The PERT-II type thermal retention tube hot melt welding performance testing device according to claim 1, characterized in that: The side surface of the positioning plate (5) is provided with a water outlet pipe (7), and the water outlet pipe (7) penetrates through the positioning plate (5), the water inlet pipe (6) is provided with a first valve (62), and the water outlet pipe (7) is provided with a second valve (71).

6. The PERT-II type thermal retention tube hot-tack weldability performance testing device according to claim 1, characterized in that: The pressurizing assembly includes a water supply pump (10) mounted on the side surface of the water storage tank (8), and the water outlet end of the water supply pump (10) is provided with a communication pipe (11) communicating with the inner cavity of the water storage tank (8).

7. The PERT-II type thermal retention tube hot melt welding performance testing device according to claim 1, characterized in that: The water storage tank (8) is provided with a pressure detection sensor (12), and the detection end of the pressure detection sensor (12) is located in the water storage tank (8), and the lower portion of the side surface of the water storage tank (8) is provided with a support frame (9) supporting the water storage tank (8). The water storage tank (8) is provided with a pressure detection sensor (12), and the detection end of the pressure detection sensor (12) is located in the water storage tank (8), and the lower portion of the side surface of the water storage tank (8) is provided with a support frame (9) supporting the water storage tank (8).

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